Rotary flow path switching valve
By installing seals in the rotary flow path switching valve, especially sealing rings of flexible materials, the gear jamming problem is solved, and the sealing performance is improved and the long-term reliability of the valve body is achieved.
Patent Information
- Application Number
- CN202422450708.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-10
AI Technical Summary
In the existing rotary flow path switching valve, fine impurities in the refrigerant can easily enter the isolation sleeve and cause the gear to get stuck, affecting the long-term and reliable operation of the valve body.
A seal is provided between the active slider and the isolation sleeve, especially a seal ring made of flexible material, forming a plurality of soft seal structures to block the fine impurities in the refrigerant from entering the drive cavity and prevent the gear from getting stuck.
It improves sealing performance, prevents gears in the upper driving chamber of the active slider from being stuck, and ensures long-term reliable reversal of the rotary flow path switching valve.
Smart Images
Figure CN223165076U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotary flow path switching valves, and particularly to a rotary flow path switching valve. Background Art
[0002] At present, the rotary flow path switching valve in the prior art generally includes a valve seat, an isolation sleeve, and an active slider. The valve seat is installed on the isolation sleeve, and the active slider is rotatably installed on the valve seat to achieve the switching of the flow path.
[0003] However, when the rotary flow path switching valve in the prior art is working, fine impurities in the refrigerant may enter the isolation sleeve, so that the gears in the isolation sleeve are stuck, thereby affecting the long-term reliable operation of the valve body. Summary of the Utility Model
[0004] The main purpose of the utility model is to provide a rotary flow path switching valve to solve the technical problem that the gears in the rotary flow path switching valve in the prior art are prone to being stuck.
[0005] To achieve the above purpose, the utility model provides a rotary flow path switching valve, including: a valve seat and an isolation sleeve, the valve seat is arranged at the bottom of the isolation sleeve, and the valve seat and the isolation sleeve enclose a driving cavity; an active slider, rotatably arranged on the valve seat, and the active slider is located in the driving cavity; a sealing member, arranged between the active slider and the isolation sleeve.
[0006] Further, a positioning groove is arranged on the active slider, and the sealing member is installed in the positioning groove.
[0007] Further, the sealing member includes a sealing ring, and the sealing ring is sleeved on the active slider.
[0008] Further, an annular groove is arranged on the active slider, and the sealing ring is installed in the annular groove.
[0009] Further, there are multiple sealing members, and the multiple sealing members are arranged at intervals along the axial direction of the valve seat.
[0010] Further, multiple positioning grooves are arranged on the active slider, the multiple positioning grooves are arranged in one-to-one correspondence with the multiple sealing members, and each sealing member is installed in the corresponding positioning groove.
[0011] Further, the isolation sleeve includes a side wall and a top wall connected to each other, an installation opening is formed on one side of the side wall away from the top wall, the valve seat is installed at the installation opening, and the valve seat is welded to the side wall.
[0012] Further, a first flow path and a second flow path are provided on the valve seat, and the first flow path and the second flow path are arranged at intervals; an active slider is rotatably arranged on the valve seat, and an installation groove and an active groove are arranged on the active slider, the installation groove and the active groove are arranged at intervals, and the openings of the installation groove and the active groove both face downward. The active groove is used to communicate with the first flow path or the second flow path; a driven slider is installed in the installation groove, and a connection groove with a downward opening is arranged on the driven slider, and the connection groove is used to communicate with the first flow path or the second flow path.
[0013] Further, when the rotary flow path switching valve is in the working state, the pressure in the active groove is greater than the pressure in the installation groove. An application passage is further arranged on the active slider, one end of the application passage communicates with the installation groove, and the other end of the application passage communicates with the active groove.
[0014] Further, there are multiple application passages, and the multiple application passages are arranged at intervals on the side wall between the installation groove and the active groove.
[0015] Applying the technical solution of the present utility model, by arranging a sealing member between the active slider and the isolation sleeve, in this way, the sealing between the active slider and the isolation sleeve can be achieved, blocking the entry of fine impurities in the refrigerant into the driving cavity, preventing the gears in the upper driving cavity of the active slider from jamming, and ensuring the long-term reliable commutation of the valve body of the rotary flow path switching valve. Therefore, through the rotary flow path switching valve provided by the present utility model, the technical problem that the gears in the existing rotary flow path switching valve are prone to jamming can be solved. Description of the Drawings
[0016] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:
[0017] Figure 1 Shows a schematic structural diagram of an active slider provided by an embodiment of the present utility model;
[0018] Figure 2 Shows a schematic structural diagram of a rotary flow path switching valve provided by an embodiment of the present utility model.
[0019] Among them, the above-mentioned drawings include the following reference numerals:
[0020] 10. Valve seat; 20. Isolation sleeve; 30. Active slider; 30a. Positioning groove; 31. Installation groove; 32. Active groove; 33. Application passage; 40. Sealing member; 50. Driven slider; 60. Gear; 71. First flow path; 72. Second flow path. Detailed Embodiment
[0021] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in conjunction with the embodiments.
[0022] As Figure 1 and Figure 2 shown, an embodiment of the present utility model provides a rotary flow path switching valve, which includes a valve seat 10, an isolation sleeve 20, a driving slider 30 and a seal 40. The valve seat 10 is arranged at the bottom of the isolation sleeve 20. The valve seat 10 and the isolation sleeve 20 enclose a driving cavity. The driving slider 30 is rotatably arranged on the valve seat 10, and the driving slider 30 is located in the driving cavity. The seal 40 is arranged between the driving slider 30 and the isolation sleeve 20.
[0023] By adopting the rotary flow path switching valve provided in this embodiment, by arranging the seal 40 between the driving slider 30 and the isolation sleeve 20, in this way, it can seal between the driving slider 30 and the isolation sleeve 20, block the entry of fine impurities in the refrigerant into the driving cavity, prevent the gear 60 in the upper driving cavity of the driving slider 30 from being stuck, and ensure the long-term reliable commutation of the valve body of the rotary flow path switching valve. Therefore, through the rotary flow path switching valve provided by the present utility model, the technical problem that the gear 60 in the existing rotary flow path switching valve is prone to being stuck can be solved.
[0024] Specifically, the seal 40 in this embodiment can be made of a flexible material, so that the seal 40 and the isolation sleeve 20 form a soft seal to block the entry of fine impurities in the refrigerant into the driving cavity.
[0025] In this embodiment, a positioning groove 30a is provided on the driving slider 30, and the seal 40 is installed in the positioning groove 30a to improve the installation stability of the seal 40.
[0026] Specifically, the seal 40 in this embodiment includes a sealing ring, and the sealing ring is sleeved on the driving slider 30. By adopting such a structural arrangement, the sealing performance can be better improved. Specifically, the seal 40 can be a rubber ring.
[0027] In this embodiment, an annular groove is provided on the driving slider 30, and the sealing ring is installed in the annular groove. By adopting such a structural arrangement, the sealing performance can be further improved. Specifically, it can also be understood that the positioning groove 30a is an annular groove.
[0028] Specifically, there are multiple seals 40 in this embodiment, and the multiple seals 40 are arranged at intervals along the axial direction of the valve seat 10. In this way, it can better prevent fine impurities from entering the driving cavity. Specifically, the seal 40 is made of a flexible material to form multiple soft seal structures to better improve the sealing performance.
[0029] In this embodiment, a plurality of positioning grooves 30a are provided on the active slider 30, and the plurality of positioning grooves 30a are arranged in one-to-one correspondence with the plurality of seals 40. Each seal 40 is installed in the corresponding positioning groove 30a. With such a structural arrangement, it is possible to facilitate better improving the setting stability of the plurality of seals 40, avoiding the situation of the seals 40 running around randomly, so as to better ensure the sealing performance.
[0030] Specifically, in this embodiment, the isolation sleeve 20 includes a side wall and a top wall that are connected to each other. An installation opening is formed on the side of the side wall away from the top wall, and the valve seat 10 is installed at the installation opening, and the valve seat 10 is welded to the side wall. With such a structural arrangement, it is possible to facilitate improving the connection stability between the isolation sleeve 20 and the valve seat 10, so as to improve the setting stability.
[0031] Specifically, the outer wall of the isolation sleeve 20 includes a side wall and a top wall that are connected to each other. The side wall is a circumferential wall surface, and the top wall is an arc-shaped wall surface. An installation opening is formed on the side of the circumferential wall surface away from the arc-shaped wall surface.
[0032] In this embodiment, a first flow passage 71 and a second flow passage 72 are provided on the valve seat 10, and the first flow passage 71 and the second flow passage 72 are arranged at intervals. The active slider 30 is rotatably arranged on the valve seat 10. An installation groove 31 and an active groove 32 are provided on the active slider 30, and the installation groove 31 and the active groove 32 are arranged at intervals. The openings of the installation groove 31 and the active groove 32 both face downward, and the active groove 32 is used to communicate with the first flow passage 71 or the second flow passage 72. The driven slider 50 is installed in the installation groove 31, and a connecting groove with a downward opening is provided on the driven slider 50, and the connecting groove is used to communicate with the first flow passage 71 or the second flow passage 72. With such a structural arrangement, it is possible to facilitate switching between the first flow passage 71 and the second flow passage 72, so as to switch to different flow paths. Specifically, there may be two first flow passages 71 in this embodiment, and the two first flow passages 71 are arranged at intervals. There may be two second flow passages 72, and the two second flow passages 72 are arranged at intervals. During switching, it is possible to switch to a position communicating with the two first flow passages 71, or switch to a position communicating with the two second flow passages 72.
[0033] In this embodiment, when the rotary flow path switching valve is in the working state, the pressure in the active groove 32 is greater than the pressure in the mounting groove 31. A pressure application passage 33 is further provided on the active slider 30. One end of the pressure application passage 33 communicates with the mounting groove 31, and the other end of the pressure application passage 33 communicates with the active groove 32. With such a structural arrangement, the active slider 30 and the driven slider 50 are respectively docked with the first flow passage 71 and the second flow passage 72 one by one to form a flow path switching. Since the pressure application passage 33 is provided between the active groove 32 and the mounting groove 31, and the pressure in the active groove 32 is greater than the pressure in the mounting groove 31, the driven slider 50 can be pressed by the high-pressure fluid in the driven slider 50, ensuring that the driven slider 50 can closely adhere to the valve seat 10, thereby improving the sealing performance to better prevent impurities from entering the drive cavity and preventing the product in the drive cavity from failing.
[0034] Specifically, there are multiple pressure application passages 33, and the multiple pressure application passages 33 are arranged at intervals on the side wall between the mounting groove 31 and the active groove 32. With such a structural arrangement, it is convenient for the high-pressure liquid in the active groove 32 to enter the mounting groove 31 through the multiple pressure application passages 33, so that the high pressure of the high-pressure fluid can act on the driven slider 50 stably and evenly, enabling the driven slider 50 to better adhere to the valve seat 10, thereby better improving the sealing performance of the structure.
[0035] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: improving the sealing performance, blocking fine impurities in the refrigerant, preventing the gears in the drive cavity above the active slider from jamming, and ensuring the long-term reliable commutation of the valve body.
[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0037] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0038] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc., are usually based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary statements, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the scope of protection of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0039] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. can be used here to describe the spatial positional relationships of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.
[0040] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without otherwise stating, the above words have no special meanings, and thus cannot be construed as limiting the scope of protection of the present application.
[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A rotary flow path switching valve, characterized in that, Comprising: A valve seat (10) and an isolation sleeve (20), the valve seat (10) is arranged at the bottom of the isolation sleeve (20), and the valve seat (10) and the isolation sleeve (20) enclose a driving cavity; A driving slider (30), rotatably arranged on the valve seat (10), and the driving slider (30) is located in the driving cavity; A seal (40), arranged between the driving slider (30) and the isolation sleeve (20).
2. The rotary flow path switching valve according to claim 1, wherein A positioning groove is arranged on the driving slider (30), and the seal (40) is installed in the positioning groove.
3. The rotary flow path switching valve according to claim 1, wherein The seal (40) includes a sealing ring, and the sealing ring is sleeved on the driving slider (30).
4. The rotary flow path switching valve according to claim 3, characterized in that, An annular groove is arranged on the driving slider (30), and the sealing ring is installed in the annular groove.
5. The rotary flow path switching valve according to claim 1, characterized in that, There are multiple seals (40), and the multiple seals (40) are arranged at intervals along the axial direction of the valve seat (10).
6. The rotary flow path switching valve according to claim 5, characterized in that, Multiple positioning grooves are arranged on the driving slider (30), and the multiple positioning grooves are arranged in one-to-one correspondence with the multiple seals (40), and each seal (40) is installed in the corresponding positioning groove.
7. The rotary flow path switching valve according to claim 1, wherein The isolation sleeve (20) includes a side wall and a top wall connected to each other, an installation opening is formed on one side of the side wall away from the top wall, the valve seat (10) is installed at the installation opening, and the valve seat (10) is welded to the side wall.
8. The rotary flow path switching valve according to claim 1, wherein, A first flow pipeline (71) and a second flow pipeline (72) are arranged on the valve seat (10), and the first flow pipeline (71) and the second flow pipeline (72) are arranged at intervals; A driving slider (30), rotatably arranged on the valve seat (10), an installation groove (31) and a driving groove (32) are arranged on the driving slider (30), the installation groove (31) and the driving groove (32) are arranged at intervals, the openings of the installation groove (31) and the driving groove (32) both face downwards, and the driving groove (32) is used to communicate with the first flow pipeline (71) or the second flow pipeline (72); A driven slider (50), installed in the installation groove (31), and a connecting groove with a downward opening is arranged on the driven slider (50), and the connecting groove is used to communicate with the first flow pipeline (71) or the second flow pipeline (72).
9. The rotary flow path switching valve according to claim 8, wherein, When the rotary flow path switching valve is in the working state, the pressure in the driving groove (32) is greater than the pressure in the installation groove (31), and a pressure application passage (33) is also arranged on the driving slider (30), one end of the pressure application passage (33) is communicated with the installation groove (31), and the other end of the pressure application passage (33) is communicated with the driving groove (32).
10. The rotary flow path switching valve according to claim 9, characterized in that, There are multiple pressure application passages (33), and the multiple pressure application passages (33) are arranged at intervals on the side wall between the installation groove (31) and the driving groove (32).